package com.sky.controller.admin;

import com.sky.service.admin.DishService;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.vo.DishVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Slf4j
public class DishController {

    @Autowired
    DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 添加菜品
     *
     * @param dishDTO
     * @return
     */
    @PostMapping
    @CacheEvict(cacheNames = "DishCache" , key = "#dishDTO.categoryId")
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("添加菜品：{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清理缓存数据
       /* String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);*/
        return Result.success();
    }

    /**
     * 菜品分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        System.out.println(pageResult);
        return Result.success(pageResult);
    }

    /**
     * 菜品删除
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    @CacheEvict(cacheNames = "DishCache" , allEntries =  true )
    public Result update(@RequestParam List<Long> ids) {
        log.info("菜品批量删除：{}", ids);
        dishService.deleteBatch(ids);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        //cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品:{}", id);
        DishVO byIdWithFlavor = dishService.getByIdWithFlavor(id);
        return Result.success(byIdWithFlavor);
    }

    /**
     * 根据菜品分类id查询菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    public Result<List<DishDTO>> getById2(@RequestParam("categoryId") Long categoryId) {
        log.info("根据菜品分类id查询菜品:{}", categoryId);
        List<DishDTO> byCategoryId = dishService.getByCategoryId(categoryId);
        return Result.success(byCategoryId);
    }

    /**
     * 修改菜品
     *
     * @param dishDTO
     * @return
     */
    @PutMapping
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品：{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 菜品起售停售
     *
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    public Result<String> startOrStop(@PathVariable Integer status, Long id) {
        dishService.startOrStop(status, id);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
